baber/WOPTO huggingface dataset:
Patent GB-893447-A (GB)
Title: Improvements in flexible hose lines and method of making the same
IPC: F16L9/12
Filed: 1960-09-26
Abstract: 893,447. Non-metallic tubes. AEROQUIP A.G. Sept. 26, 1960 [Nov. 12, 1959], No. 33048/60. Class 99(2). A tube of P.T.F.E. is internally prestressed so that its interior surface is in compression. In a method of making the tube lengths of extruded and sintered P.T.F.E. tubing are placed into heating chambers extending through a salt bath furnace and are heated just above the critical temperature of 620‹F. The tubes while still in the treating chambers are then suddenly and interiorly quenched by circulating pressurized water or brine through them. After stabilization the coolant is shut off and the tubes withdrawn from the furnace. The tube may be reinforced by an outer layer of wire and assembled in a conduit to provide a flexible hose. Specification 811,739 is referred to.
Patent GB-975002-A (GB)
Title: Cleaning composition
IPC: C11D17/00
Filed: 1961-09-15
Abstract: A metal cleaning composition comprises, by weight (a) 25-90 parts water, (b) 0.57-95 parts of an emulsifier, (c) 0-55 parts of a hydrocarbon solvent, (d) up to 5 parts of an oleophilic amorphous thickener dispersible in (c), (e) 0-50 parts abrasive, and (f) 0.5-5 parts of a sequestering agent for removing oxides and foreign matter from the metal surface.  (b) may be a morpholine salt of a C12-18-fatty acid, a C12-18-primary amine acetate, ethylene oxide condensates with a fatty acid or an alkylphenol, amino fatty acids, di-n-octyl sodium sulphsuccinate, or sodium sec. alkyl sulphate, but is preferably obtained by mixing in situ 0.7-4 parts caustic soda, 0.5-28 parts oleic acid, 0-63 parts sulphonated red oil and 0-60 parts 26 DEG  B<\>ae ammonia.  (c) is preferably kerozene. (d) is suitably an alkali metal, aluminium, zinc or lead oleate, the dimethyldioctadecyl salt of montmorillonite clay, colloidal silica or aluminium naphthenate. (e) is generally finely divided silica and (f) is usually citric or oxalic acid.  The composition may also contain pine oil, and if it is to be used as an aerosol, is packaged under pressure with 0.1-25% of its weight of a propellant, e.g. compressed nitrous oxide, carbon dioxide, isobutane, nitrogen, or air, or chlorofluorinated hydrocarbons, especially a mixture of 45% dichlorodifluoromethane and 55% dichlorotetrafluoroethane in an amount of 1 part to 4 parts of cleaning composition.
Patent GB-662759-A (GB)
Title: Volume control devices
IPC: H03G3/20
Filed: 1948-12-23
Abstract: 662,759. Regulating switches; switch cases. PYE, Ltd., and BLACKLER, E.R. March 24, 1950. [Dec. 23, 1948] No. 33173/48. Class 38 (v). [Also in Group XXXVI] A. control equipment for broadcasting and other purposes has a readily detachable fading control, comprising a potentiometer unit with contact elements engageable with contact elements within the equipment and releasable locking means for retaining the unit in position. The potentiometer unit comprises a front panel 1 secured in spaced relationship to an insulating frame member 4 which carries an insulating plate 3. The plate 3 has two concentric series of metal contact studs 30 engaged by the slider 31 carried by the operating spindle 16. The resistance elements 27 connected to these studs, are carried between two insulating discs, 28, 29, the rear disc 29 being provided with a multi-contact plug 12, which engages in a socket 11 fixed to the rear plate 10 of a box 9 secured in an aperture of the front plate 33 of the equipment. The plate 3, which is rectangular, has guide rods 5b, 5c mounted at its corners, two of the rods, as 5c, being provided with helical springs 6 engaging washers 7. When the unit is inserted into the box 9, it is guided into its correct position, with the couplings, 11, 12 correctly aligned, by the ends of the rods 5b entering holes 13a in the plate 10 and by the enlarged ends 8 of. the rods 5c entering sockets 13 in plate 10. The washers 7 abut the plate 10 so that the springs 6 are stressed, so as to partly eject the unit when the locking means are released. The latter comprise the ends 1.4a, 14b of a pivoted lever 15 located between the panel 1 and member 4, the ends of the lever engaging in slots 38 in the side walls of the box 9. The lever 15 is moved to disengage the ends 14a, 14b by means of button 18 movable in a slot (not shown) in the panel 1. To enable a warning or cue light signal to be given as the fader is operated, a switch 25 within the control equipment is actuated by a spring loaded push rod 23 which is moved by a cam 21 on a disc 20 fixed to the spindle 16, the cam engaging an arm 22 attached to the rod 23. If the fader is to fade in one signal whilst fading out another the unit may have two ganged potentiometer elements and two push rods 23 to actuate two switches 25.
Patent GB-1428589-A (GB)
Title: Piezoelectric transducers
IPC: H03H9/05
Filed: 1974-07-26
Abstract: 1428589 Piezo electric transducers P R MALLORY & CO Inc 26 July 1974 [26 July 1973] 33252/74 Heading H4J  To bridge electrically any cracks in a piezoelectric element attached by one electrode surface to a resonator, the other electrode surface is bonded to an electrically conductive deformable film. In a high power audio transducer one metallized (Ag) surface 26 of a piezo-ceramic element 14 is bonded electrically and mechanically face to face to a brass disc resonator 24 by conductive epoxy cement 28, the metal (Cu) particles 32 of which bridge the thickness of the cement layer. On the opposite metallized (Ag) surface 27 a deformable film 16, e.g. 0À001 inch polyester 36 made conductive by aluminizing 17, is bonded by similar cement 28 so that any cracks 42 which develop are bridged electrically, all parts of surface 27 being connected to soldered lead 20.
Patent GB-321828-A (GB)
Title: Improvements in and connected with machines for producing small portions or pats of butter
IPC: A01J21/02
Filed: 1928-11-14
Abstract: 321,828. Frings, G. Nov. 14, 1928, Stream-cutting Machines; extrusion machines. -Butter-cutting machines of the type in which an extended bar advanced by a piston is cut into pats by a rotary or oscillating cutter, is fitted with pawl-and-ratchet setting and feeding mechanism in which a pawl having an invariable stroke co-operates with an adjustable shield which is set to vary the size of the pat. A removable container 2 fitted with extension nozzle 3 has a flanged rim 5 for engaging the bed-plate. The racked piston 4 is advanced by the pinion 13 on rotation of the handle 10 to effect preliminary compression. The crank is then transferred to the shaft 12 and used to operate the crank 21, links 20 and pawl-carrying arm 15. The ratchet wheel 14 then rotates the pinion 13 stepby-step. The crank 21 also operates the reciprocating knife 26 through the medium of the rack bar 23 and pinion 24. The adjustable shield 17 is carried by a pair of levers 16 and is toothed along one edge to engage a pinion 19 which is set by a hand-operated dial 18 to prevent the pawl from engaging the ratchet wheel during an adjustable predetermined portion of its stroke.
Patent GB-1103900-A (GB)
Title: Apparatus and method for producing celeste animation in music
IPC: G10H1/045
Filed: 1966-07-25
Abstract: 1,103,900. Electric musical instruments. HAMMOND CORPORATION. 25 July, 1966 [26 Aug., 1965], No. 33349/66. Heading G5J. In a musical instrument such as an electrophonic organ, a celeste effect is produced by applying audio-frequency signals to a delay line the tappings of which are scanned cyclically in both directions simultaneously at a rate of not more than 3 cycles per second. The outputs may be combined and fed to a common speaker or may be fed to separate speakers. As shown the signals are applied at a switch 12. The higher frequencies pass through filters 24, 25 direct to speakers 21, 22 while the lower frequencies pass along the delay line S 0  to S n . A scanning device comprising a rotor 64 carrying capacitor plates 62, 63 which co-operate with fixed capacitor plates 46 to 61 scans the delay line tappings 38 to 45 and 70. Each plate 62 or 63 constitutes a separate scanning head and is connected to a separate speaker 21 or 22. During each revolution of the rotor each head scans along the taps and back again, the two heads being half a cycle out of phase. The output from the speakers sounds as two voices shifted slightly in frequency either side of the audio-frequency signal.
Patent GB-657581-A (GB)
Title: Process for the preparation of a methylketone related to oestrone
Filed: 1948-12-29
Abstract: A methyl ketone of the formula <FORM:0657581/IV (b)/1> is obtained from oestrone by acylating the hydroxy group, transforming the acyl-oestrone by means of potassium cyanide into the corresponding cyanhydrin, dehydrating the cyanhydrin to form the ethylenic nitrile, subjecting the said nitrile to the action of an excess of a Grignard methylating agent and hydrolysing the product to form the ethylenic methyl ketone and then hydrogenating the product to form the desired methyl ketone.  Detailed examples are given.  Specification 8612/39 (as open to inspection under Sect. 91) is referred to.
Patent GB-282099-A (GB)
Title: Improvements in or relating to the synchronisation of rotating bodies
IPC: H04N1/36
Filed: 1927-12-10
Abstract: 282,099. Lorenz Akt.-Ges., C. Dec. 11, 1926, [Convention date]. Synchronous movements. -In a method of ensuring the synchronous rotation of machines at different stations, e.g. in copying telegraphy, alternating currents generated by the two machines are superimposed and the resulting current is commutated, in rhythm with the frequency generated by the controlled machine, and supplied to a brake or other means for regulating its rotation. 'The currents produced by the two machines 1, 2, may be of the same frequency and generated by toothed discs 3, 11 rotating between the poles of magnets having adjustable field strengths. The currents are led to the primary windings 9, 10 of a differential transformer, the secondary of which is connected to the slip rings of a, commutator 20 so arranged that commutation takes place at the moment when the current produced by the disc 11 reaches its maximum value. The rectified current mav be applied to the grid of a valve 25, the anode circuit of which includes an eddy current brake 23. If the machine 2 is an electric motor, the rectified current acts directly or indirectly on the field excitation.
Patent GB-493671-A (GB)
Title: Thermionic amplifiers
IPC: H03F1/36
Filed: 1937-12-03
Abstract: 493,671. Two-way transmission. STANDARD TELEPHONES & CABLES, Ltd. Dec. 3, 1937, No. 33553. Convention date, Dec. 5, 1936. [Class 40 (iv)] [Also in Group XL] In a repeater comprising a negative feedback amplifier, provision is made for heating the valves over the lines L, L1 from a battery 14 with earth return. Also, the application of negative feed-back amplifiers to two-way repeaters is described with reference to Fig. 2B (not shown). Specification 458,565, [Group XL], is referred to.
Patent GB-654849-A (GB)
Title: Improvements relating to telephone systems
IPC: H04Q3/00
Filed: 1947-12-19
Abstract: 654,849. Automatic exchange systems. SIEMENS BROS. & CO., Ltd., and STALLWORTHY, F. A. Dec. 19, 1947, No. 33694. Drawings to Specification. [Class 40 (iv)] The Specification describes an operator's position and its associated connecting circuits, trunk selectors and register senders identical with that described in Specification 654,852, but the claims are directed to the feature that while a sender is engaged in setting up a connection over one side of a connecting circuit at an operator's position, a second sender can be connected to the other side of the connecting circuit or to either side of another connecting circuit at the same position. Specifications 471,987, 634,828 and 654,848 also are referred to.
Patent GB-644090-A (GB)
Title: Improvements in control means for chain shifting change speed devices and analogous systems for cycles and analogous vehicles
IPC: B62M25/04
Filed: 1947-12-20
Abstract: 644,090. Control levers for cycles. BREVETS SOUHART SOC. ANON. Dec. 20, 1947. Nos. 33718 and 33719. Convention dates, Sept. 6, 1943 and Oct. 19, 1943. [Class 136 (i)] In a cycle control device, more particularly for change speed gears, having a control lever carried by handle-bars 2 the lever 14 is pivotally mounted at the free end 1 of one of the handle-bars so that it may be controlled by a cyclist without removing his hand from the handle-bar. The lever 14 is mounted on a support 3 fixed to the handle-bars by means of an expansible locking wedge 4. A nut 5 mounted on a screw 6 controls the expansion. A pulley 11 is mounted in the support 3 and carries a control cable 12 which passes through a channel 15 in the support 3. A channel 17 is also provided. Notches may be used instead of channels. Alternatively, the pulley may be mounted on a spindle fitted directly in the handle-bar and guided laterally by guide members carried by the handle-bar or by the handle-bar itself. As shown in Fig. 9, the lever comprises a lever 26 which can be angularly coupled with the pulley 22 by any one of a number of peripheral recesses 30 corresponding to the gear ratio which the cyclist wishes to obtain.
Patent GB-641019-A (GB)
Title: Improvements in or relating to circuits for electromagnetic interrupters
IPC: H02M7/62
Filed: 1947-12-22
Abstract: 641,019. Converting. ERICSSON TELEPHONES, Ltd., and DISTIN, L. S. Dec. 22, 1947, No. 33785. [Class 38 (ii)] An arrangement for obtaining an alternating current from a direct current source includes one or more pairs of transformers, e.g. TRA, TRB, each transformer having its primary circuit, periodically made and broken by separate contacts of an electromagnetic interrupter VB, the secondary winding 2 of each transformer being connected in series with a different winding 3 or 4 of a reactor LC, the circuits so formed being in parallel with each other and in series with the load R, so that when one primary circuit of a pair is broken the current flowing in the other is reduced. The reactor windings are arranged such that when each transformer is simultaneously delivering current to the load it is substantially non-inductive, but if one vibrator contact breaks before another one transformer secondary winding will endeavour to supply the load through the secondary winding of the other, thus reversing the current in one winding of the reactor which causes it to become highly inductive, thus reducing the current to the load. The other contacts thus break under reduced current conditions so prolonging the life of the contacts. Commutating contacts may be incorporated in the vibrator so that the final output is direct current.
Patent GB-912219-A (GB)
Title: Improvements in or relating to presses for assembling the fabric-spanning frames forembroidering machines
IPC: D05C13/00
Filed: 1960-10-03
Abstract: 912,219. Machinery safety devices. JOSEF, W. Oct. 3, 1960, No. 33841/60. Class 80 (4). A press 4 for resiliently and detachably interlocking the two frame parts 6, 7 of a fabricspanning device for an embroidering machine is characterized by the provision of fluid-operated means for pressing one frame part into the other, and electrical safety means for forcing the operator to remove both his hands at the same time from the range of action of the press when it is actuated. After closing a main switch S1, the operator uses both hands to close switches S2 at the same time and thereby energize a relay S5 to operate an electric clutch K and gearing unit G which works via press cylinder P to lower and raise the press 4. During the lowering process, a switch S4 is closed which enables switches S2 to be released. When the press 4 is raised, the switch S4 is opened, thereby causing the release of relay S5, the disengagement of clutch K and the end of the working cycle. A quick-action switch S3 is also provided to interrupt the circuit to relay S5 at any time.
Patent GB-605114-A (GB)
Title: Improvements in and relating to toroidal inductance coils
IPC: H01F17/06
Filed: 1945-12-14
Abstract: 605,114. Inductances. GENERAL ELECTRIC CO., Ltd., TURNER, H. C., and HARTLAND, G. W. Dec. 14, 1945, No. 33907. [Class 38 (ii)] The inductance of a toroidal coil is varied by the movement of a magnetic member within an aperture in the core. Fig. 1 shows a cylindrical iron dust slug 3 mounted on a phosphor bronze, brass or other non-magnetic screw 4 which moves upon rotation across an aperture 1 in the core 2. Fig. 3 shows a semi-circular slug 3 which is rotated in the aperture 1, or the slug may be elongated, Fig. 4 (not shown). alternatively a rectangular slug may move across a gap between two ends of the core which are joined by non-magnetic plates, Fig. 5 (not shown). Fig. 6 shows a housing 7 into which the slug 3 is completely withdrawn. According to the Provisional Specification, screw 4 may be replaced by a wire.
Patent GB-1388214-A (GB)
Title: Acetals
IPC: A61K31/505
Filed: 1973-02-06
Abstract: 1388214 Acetals F HOFFMANN-LA ROCHE & CO AG 6 Feb 1973 [7 Feb 1972] 33998/74 Divided out of 1388213 Heading C2C Acetals are prepared by the following route (R 1-4  = C 1-7  alkyl).
Patent GB-867318-A (GB)
Title: Improvements in or relating to seals for rotary shafts
Inventor: KUIKEN JAN
IPC: F16J15/38
Filed: 1959-10-08
Abstract: 867,318. Stuffing-box substitutes. SHELL RESEARCH Ltd. Oct. 8, 1959, No. 34133/59. Class 122 (5). A seal between a ship's propeller shaft 10, Fig. II, and the stern tube 11 comprises a non- rotatable member 12 secured to the inboard end of the tube, a member 30 secured to the shaft, an intermediate member 26 located between the members 12, 30 and having a bore permitting its limited rocking movement about an axis at right angles to the shaft, a sealing- ring 29 interposed between the members 26, 30, and biasing means whereby the member 12 maintains rubbing contact with the adjacent face of the member 26. The member 12 has a flange 17 against which springs 20 act in order to urge a ring 23, which may be of leaded bronze, into contact with the member 26, which may be of stainless steel and is loosely keyed to the member 30 by studs 31; the loading of the springs is adjustable by nut-and-bolt devices 19, 22. The member 12, which is prevented from rotation by studs 33, Fig. III, passing through rubber bushes 34 in the flange 17, is formed with a sleeve 14 projecting into the stern tube and sealed by a resilient ring 16, a sheet 16a of cloth being located, if desired, between the ring and stern tube bush 11a. The bore of the intermediate member 26 may be such as to surround the shaft 10 with sufficient clearance to permit the required rocking member and preferably has the slightly convex form shown. The sealing contact faces 24, 25 of the rings 23, 26 are lubricated through passages 36 and cooled by circulating water through passages 37. The members 12, 26, 30 may be split into two parts and bolted together. In a modification (Fig. IV, not shown) a rubber sealing ring formed with grooves in its sealing face is located in the member 26 for engagement with the ring 23. At the outboard end of the shaft 10, the gland comprises a sealing ring 42, Fig. V, between a retaining ring 41 and propeller 43, and a bearing ring 44 which is screwed into the outboard end of the stern tube with an interposed sealing ring 45 and houses a rubbing ring 47 of hard rubber or plastic contacting a spring-loaded gland ring 48 located in a sleeve portion 41a of the retaining ring 41.
Patent GB-1466089-A (GB)
Title: Apparatus for attenuation of noise emission by the jet nozzles of jet engines
IPC: F02K1/42
Filed: 1974-08-02
Abstract: 1466089 Silencing jet propulsion nozzles SOC NATIONALE D'ETUDE ET DE CONSTRUCTION DE MOTEURS D'AVIATION 2 Aug 1974 [31 Aug 1973] 34199/74 Addition to 1364007 Heading F1J Directional silencing of the jet stream leaving the propulsion nozzle of an aircraft jet engine is effected by flattening the jet stream by means of orthogonal pairs of facing panel members. The propulsion nozzle comprises panels A 1 , A 2 , B 1 , B 2  &c. which are hinged together and slidably interfit so as to be movable under control of jacks V, V 1 , V 2  into a square cruise position, Fig. 2, a take-off position with silencing in a horizontal plane, Fig. 1, or an overflight position with silencing in a vertical plane, Fig. 4.
Patent GB-447500-A (GB)
Title: Improvements in window display devices
IPC: A47F5/025
Filed: 1934-11-28
Abstract: 447,500. Displaying. GENERAL ELECTRIC CO., Ltd., Magnet House, Kingsway, London, and JENNINGS, D. A., c /o General Electric Co., Ltd., Witton, Birming- ham. Nov. 28, 1934, No. 34224. [Class 3 (i)] A turntable 3 for the display of goods &c. is mounted on a base 10 which has one or more viewing openings 18 and which contains a driving motor 1 and a lamp 17. A varicoloured or shutter-form light filter 6 is carried by a disc 5 to turn with the table, and imparts to a display panel at the opening 18 a colour- or other light-changing appearance. The panel may consist of a stencil backed by a white or coloured transparent or translucent sheet, or may comprise such sheet only with opaque printing thereon, or may include a combination of stencil and sheet display, a window being formed in part of the stencil. The upper surface of the disc 5 is polished to reflect light, and the table 3 may be of glass &c., holes covered with coloured material, being cut in the base top to admit light from the lamp 17. The motor 1 may operate a switch to light the lamp intermittently. The base 10 stands on rubber feet 20.
Patent GB-1047619-A (GB)
Title: Method for printing on polyolefin extrusion coated substrates
IPC: C08K5/20
Filed: 1964-08-21
Abstract: The adherence of printing ink to a polythenecoated substrate is enhanced by heating the coated substrate immediately before or after printing to a temperature between 140 DEG  F. and the temperature at which the surface of the polythene becomes tacky. In one example polythene is extruded at 600 DEG  F. on to a sheet of paper.  The coated sheet is then heated at 194 DEG  F. for 30-60 seconds in an oven and immediately thereafter printed with a flexographic ink.  In a further example polythene is extruded at 600 DEG  F. on to a sheet of paper and then printed at room temperature.  Immediately after printing the coated sheet is treated in a circulating air oven at 170 DEG  F. for 15 secs.  The coated substrate may contain additives such as an erucamide or a stearamide to reduce the time of heat treatment. The sheet is preferably heated within the range 175-240 DEG  F. and the substrate may be kraft or bond paper, paper board, cloth, metal foil, glass fibre, cellophane or glassine.  The heat may be applied alternatively by an infra-red hood heater or by steamheated rollers.ALSO:The adherence of printing ink to a polythene coated substrate is enhanced by heating the coated substrate immediately before or after printing to a temperature between 140 DEG F. and the temperature at which the surface of the polythene becomes tacky.  In one example polythene is extruded at 600 DEG F. on to a sheet of paper. The coated sheet is then heated at 194 DEG F. for 30-60 secs. in an oven and immediately thereafter printed with a flexographic ink. p  In a further example polythene is extruded at 600 DEG F. on to a sheet of paper and then printed at room temperature. Immediately after printing the coated sheet is treated in a circulating air oven at 170 DEG F. for 15 secs.  The coated substrate may contain additives such as a erucamide or a stearamide to reduce the time of heat treatment.  The sheet is preferably heated within the range 175-240 DEG F. and the substrate may be kraft or bond paper, paper board, cloth, metal foil, glass fibre, cellophane or glassine. The heat may be applied alternatively by a infra-red hood heater or by steam heated rollers.